19679334229 has 4 divisors (see below), whose sum is σ = 20050642476. Its totient is φ = 19308025984.

The previous prime is 19679334209. The next prime is 19679334247. The reversal of 19679334229 is 92243397691.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 17655234129 + 2024100100 = 132873^2 + 44990^2 .

It is a cyclic number.

It is not a de Polignac number, because 19679334229 - 2⁵ = 19679334197 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 19679334229.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19679334209) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 185654044 + ... + 185654149.

It is an arithmetic number, because the mean of its divisors is an integer number (5012660619).

Almost surely, 2^19679334229 is an apocalyptic number.

It is an amenable number.

19679334229 is a deficient number, since it is larger than the sum of its proper divisors (371308247).

19679334229 is an equidigital number, since it uses as much as digits as its factorization.

19679334229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371308246.

The product of its digits is 4408992, while the sum is 55.

The spelling of 19679334229 in words is "nineteen billion, six hundred seventy-nine million, three hundred thirty-four thousand, two hundred twenty-nine".